Supplemental Video

This is a supplemental video related to the ongoing submission of short communication. The video shows two independent cases of the Eurasian Jay attracted to the snake-specific alarm call of the Oriental Tit and attempted to predate nestling/fledging. The first part of the video shows a Eurasian Jay attracted to the speaker playing back "jar" call of the Oriental Tit and tried to predate nestlings inside the nest box. The second part of the video shows a pair of Eurasian Jay attracted to the speaker playing back "jar" call of the Oriental Tit. There was a fledgling who was already fledged before our experiment and hidden in the vegetation, and one of the jay chased it when the fledgling flew off.

本视频作为短篇通讯提交的补充材料，呈现了两例欧亚松鸡被吸引至东方鸫特有的蛇类警报叫声，并尝试捕食巢中雏鸟或离巢幼鸟的独立案例。视频的第一部分展示了欧亚松鸡被播放的东方鸫“jar”叫声所吸引，试图捕食巢箱内的雏鸟。视频的第二部分展示了被播放东方鸫“jar”叫声所吸引的一对欧亚松鸡。其中一只幼鸟在实验前已经离巢，藏匿于植被之中，当幼鸟飞离时，其中一只松鸡追逐了它。